Test Sequence
- If the valve is to be replaced as part of a repair, use a new valve for the measurement.
- Due to different stem diameters, only use an intake valve in the intake valve guide and an exhaust valve in the exhaust valve guide.
-- Place the valve in the valve guide.
- Valve stem tip must seal with the valve guide.
-- Determine the tilting clearance.
- Wear limit: 0.6 mm.
-- If the wear limit is exceeded, measure using new valves.
-- Replace the cylinder head if the wear limit is still exceeded. (The valve guides cannot be replaced.)